MT28C6428P20 Micron Semiconductor Products, Inc., MT28C6428P20 Datasheet - Page 26
MT28C6428P20
Manufacturer Part Number
MT28C6428P20
Description
4 Meg X 16 Asynchronous/page Flash 512K X 16 SRAM Combo Memory
Manufacturer
Micron Semiconductor Products, Inc.
Datasheet
1.MT28C6428P20.pdf
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4 Meg x 16 Asynchronous/Page Flash 512K x 16 SRAM Combo Memory
MT28C6428P20_3.p65 – Rev. 3, Pub. 7/02
CHECK BLOCK ERASE Flowchart
Issue CHECK BLOCK
Issue ERASE SETUP
and Block Address
ERASE CONFIRM
Command and
Block Address
BLOCK ERASE
Command
Complete
YES
YES
SR7 = 1?
SR5 = 0?
Start
Figure 9
NO
NO
Error
4 MEG x 16 ASYNCHRONOUS/PAGE FLASH
26
512K x 16 SRAM COMBO MEMORY
BUS
OPERATION COMMAND COMMENTS
WRITE
WRITE
READ
Standby
Micron Technology, Inc., reserves the right to change products or specifications without notice.
ERASE
SETUP
CHECK
BLOCK
ERASE
CONFIRM
Data = 20h
Block Addr = Address
within block to be
checked
Data = D1
Block Addr = Address
within block to be
checked
Status register data
Toggle OE# or CE# to
update status register
Check SR7 and SR5
©2002, Micron Technology, Inc.
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